Modified coding style, removed unnecessary comments and "offset" key words.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Synchronization.c

diff --git a/MdePkg/Library/BaseLib/Synchronization.c b/MdePkg/Library/BaseLib/Synchronization.c
index df395869a295a1b8f0675caaf5624e3b55152ef0..0d51956d748f6dda9f46cd0ee43b083352c74e78 100644 (file)
--- a/MdePkg/Library/BaseLib/Synchronization.c
+++ b/MdePkg/Library/BaseLib/Synchronization.c
@@ -14,8 +14,8 @@
 \r
 **/\r
 \r
-#define SPIN_LOCK_RELEASED          ((SPIN_LOCK)0)\r
-#define SPIN_LOCK_ACQUIRED          ((SPIN_LOCK)-1)\r
+#define SPIN_LOCK_RELEASED          ((SPIN_LOCK)1)\r
+#define SPIN_LOCK_ACQUIRED          ((SPIN_LOCK)2)\r
 \r
 UINT32\r
 EFIAPI\r
@@ -94,7 +94,7 @@ InitializeSpinLock (
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r
-  *SpinLock = 0;\r
+  *SpinLock = SPIN_LOCK_RELEASED;\r
   return SpinLock;\r
 }\r
 \r
@@ -131,12 +131,12 @@ AcquireSpinLock (
   Tick = 0;\r
   Start = 0;\r
   End = 0;\r
-  if (FixedPcdGet32 (PcdSpinLockTimeout) > 0) {\r
+  if (PcdGet32 (PcdSpinLockTimeout) > 0) {\r
     Tick = GetPerformanceCounter ();\r
     Timeout = DivU64x32 (\r
                 MultU64x32 (\r
                   GetPerformanceCounterProperties (&Start, &End),\r
-                  FixedPcdGet32 (PcdSpinLockTimeout)\r
+                  PcdGet32 (PcdSpinLockTimeout)\r
                   ),\r
                 1000000\r
                 );\r
@@ -178,6 +178,7 @@ AcquireSpinLockOrFail (
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r
+  ASSERT (*SpinLock == SPIN_LOCK_ACQUIRED || *SpinLock == SPIN_LOCK_RELEASED);\r
   return (BOOLEAN)(\r
            InterlockedCompareExchangePointer (\r
              (VOID**)SpinLock,\r
@@ -208,7 +209,8 @@ ReleaseSpinLock (
   )\r
 {\r
   ASSERT (SpinLock != NULL);\r
-  *SpinLock = 0;\r
+  ASSERT (*SpinLock == SPIN_LOCK_ACQUIRED || *SpinLock == SPIN_LOCK_RELEASED);\r
+  *SpinLock = SPIN_LOCK_RELEASED;\r
   return SpinLock;\r
 }\r
 \r
@@ -276,7 +278,7 @@ InterlockedDecrement (
 UINT32\r
 EFIAPI\r
 InterlockedCompareExchange32 (\r
-  IN      UINT32                    *Value,\r
+  IN OUT  UINT32                    *Value,\r
   IN      UINT32                    CompareValue,\r
   IN      UINT32                    ExchangeValue\r
   )\r
@@ -299,7 +301,7 @@ InterlockedCompareExchange32 (
 UINT64\r
 EFIAPI\r
 InterlockedCompareExchange64 (\r
-  IN      UINT64                    *Value,\r
+  IN OUT  UINT64                    *Value,\r
   IN      UINT64                    CompareValue,\r
   IN      UINT64                    ExchangeValue\r
   )\r
@@ -328,7 +330,7 @@ InterlockedCompareExchange64 (
 VOID *\r
 EFIAPI\r
 InterlockedCompareExchangePointer (\r
-  IN      VOID                      **Value,\r
+  IN OUT  VOID                      **Value,\r
   IN      VOID                      *CompareValue,\r
   IN      VOID                      *ExchangeValue\r
   )\r